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RijndaelManagedTransform Class

Performs a cryptographic transformation of data using the Rijndael algorithm. This class cannot be inherited.


Namespace:  System.Security.Cryptography
Assembly:  mscorlib (in mscorlib.dll)

public sealed class RijndaelManagedTransform : ICryptoTransform, 

The RijndaelManagedTransform type exposes the following members.

Public propertyBlockSizeValueGets the block size.
Public propertyCanReuseTransformGets a value indicating whether the current transform can be reused.
Public propertyCanTransformMultipleBlocksGets a value indicating whether multiple blocks can be transformed.
Public propertyInputBlockSizeGets the input block size.
Public propertyOutputBlockSizeGets the output block size.

Public methodClearReleases all resources used by the RijndaelManagedTransform class.
Public methodDisposeReleases all resources used by the current instance of the RijndaelManagedTransform class.
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodResetResets the internal state of RijndaelManagedTransform so it can be used again to do a different encryption or decryption.
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodTransformBlockComputes the transformation for the specified region of the input byte array and copies the resulting transformation to the specified region of the output byte array.
Public methodTransformFinalBlockComputes the transformation for the specified region of the specified byte array.


Using this class is not recommended. A better practice is to use RijndaelManaged with a CryptoStream object. The CryptoStream object handles the padding issues that can occur when using RijndaelManagedTransform directly. For an example, see the RijndaelManaged class.

Both the CreateEncryptor and CreateDecryptor methods return an instance of the RijndaelManagedTransform class that is initialized with the key information of the current RijndaelManaged object. To encrypt or decrypt data using the Rijndael algorithm, pass the RijndaelManagedTransform object returned by these methods to a CryptoStream object.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.